TPD4S1394 Datasheet, PDF (1/10 Pages) Texas Instruments – FIREWIRE ESD CLAMP WITH LIVE-INSERTION DETECTION CIRCUIT

TPD4S1394
www.ti.com
SLVSA55 – NOVEMBER 2009
FIREWIRE ESD CLAMP WITH LIVE-INSERTION DETECTION CIRCUIT
Check for Samples: TPD4S1394
FEATURES
1
• IEEE1394 Live Insertion Protection
• Exceeds ESD protection to IEC61000-4- 2
(Level 4)
– ±15-kV Human-Body Model (HBM)
– ±6-kV IEC 61000-4-2 Contact Discharge
• 4-Channel Matching ESD Clamps for
High-Speed Differential Lines
• Flow-Through, Single-in-Line Pin Mapping
Simplifies Board Layout
• Available in an 8-Pin X2SON (DQL) package
APPLICATIONS
• IEEE 1394 Live Insertion Protection
DQL PACKAGE
(TOP VIEW)
V_CC 1
8 D1+
GND 2
7 D1–
V_CMLP 3
6 D2+
FWPWR_EN 4
5 D2–
DESCRIPTION
The TPD4S1394 provides robust system level ESD
solution for the IEEE.1394 port along with a live
insertion detection mechanism for high-speed lines
interfacing a low-voltage, ESD sensitive core chipset.
This device protects and monitors up to two
differential input pairs. The optimized line capacitance
allows to protect the data lines with data rate in
excess of 1.6 GHz without degrading signal integrity.
The TPD4S1394 incorporates a live insertion circuit
whose output state changes when improper voltage
levels are present on the input data lines. The
FWPWR_EN signal controls an external FireWire port
power switch. During the live insertion event if there
is a floating GND or a high level signal at the D+, D–
pins, the internal comparator will detect the changes
and pull the FWPWR_EN signal to low state. When
FWPWR_EN is driven low, there is an internal delay
mechanism preventing it from being driven to the high
state regardless of the inputs to the comparator.
Additionally, the TPD4S1394 performs ESD
protection on the four inputs pins: D1+, D1–, D2+,
and D2–. The TPD4S1394 conforms to the
IEC61000-4-2 (Level 4) ESD protection and ±15 kV
HBM ESD protection. The TPD4S1394 is
characterized for operation over ambient air
temperature of –40°C to 85°C.
A 0.1uF decoupling capacitor is required at VCC
(pin1)
ORDERING INFORMATION
T_A
PACKAGE^{(1) (2)}
NOMINAL DIMENSIONS (mm)
–40°C to 85°C SON – DQL
Reel of 3000 W = 1.4, L = 2.0, H = 0.4, Pitch = 0.5
ORDERABLE
PART NUMBER
TPD4S1394DQLR
TOP-SIDE
MARKING
5JR
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated